2009: Planet-healer Obama suggests to students that "carbon gases" could cause the seas to rise "suddenly"

Obama: Youth Must Fight Climate Devastation - YouTube

4/7/09: Obama tells students in Istanbul youth must force politicians to act on climate to prevent climate devastation.
"As many of you know, I think the science tells us that the planet is getting warmer because of carbon gases that are being sent into the atmosphere. And if we do not take steps soon to deal with it, then you could see an increase of three, four, five degrees, which would have a devastating effect -- the oceans would rise; we don't know what would happen to the beauty of Istanbul if suddenly the seas rise. Changing weather patterns would create extraordinary drought in some regions, floods in others. It could have a devastating effect on human civilization. So we've got to take steps to deal with this."